Intake or exhaust valve construction for multiple-cylinder combustion motors



Feb. 22 1927. M; HENRY INTAKE 0R EXHAUST VALVE CONSTRUCTION FORMULTIPLECYLINDER COMBUSTION MOTORS Original Filed Feb. 12, 1924s-sheets-sheet 1' Flor! M 1mm Hamy Feb 22 1927 M. HENRY INTAKE OREXHAUST VALVE CONSTRUCTION FOR MULTIPLE CYLINDER COMBUSTION MOTORSOriginal F led Feb, 12, 1924 3 SheetS -Sheet 2 V Zlvwenl'oz Mmqwl HENRYFeb. 22,1927. M HENRY v INTAKE 0R EXHAU T VALVE CONSTRUGTION FORMULTIPLE CYLINDER COMBUSTION MOTORS Original Filed Feb. 12. 1924 3sheets-sheet s 3022B X." 34 a5 v 23 8 all" 1 9 g" M; M i I 5 1 i I I' jr 19 M 1mm Hgmy Patented Feb. 22, 1927.

UNITED STATES PATENT OFFICE,

MARTIN HENRY, or vnnnnN, OKLAHOMA.

INTAKE on EXHAUST VALVE coasts-amen non anne -CYLINDER coMnUs rIoNMOTORS.

Original application filed February 12, 1924, Serial No. 692,343.Divided and. this application filed December 22, i924.

in ll-shaped arrangement, including. a single combustion chamber betweenthe cylinders of each set, whereby the pistons may travel downwardthrough the cylinders in diverging directions.

Another purpose is to provide intake and exhaust valve constructions inconjunction with a cam shaft operative through the medium of operativeconnections with pistons of the cylinders, so as to actuate means whichpull down upon members which, in turn, open the valves, there beingspring means for automatically closing the valve when the members areallowed to recede for the purpose of intaking charges and exhausting theutilized gases.

A further purpose is to provide means operable to open the intake valvetor'each combustion chamber betweenthe adjacent ends of the divergingcylindersof each series or set, so that upon the intake stroke a chargemay be drawn into the combustion chamber and upon the exhaust stroke,the utilized gases may exit, the pistons of the cylinders operating indiverging directions to impart movement to a crank shaft which, 7

in turn, operates the means for actuating said intake and exhaustvalves.

Still another purpose is to provide intake and exhaust valveconstructions for use in connection with the type of multiple cylindercombustion motor disclosed in the application for patent filed February12, 1924, Serial No. 692.3%, allowed September 16, 1924;, which hasmatured into Patent No. 1,533,004, dated April 7, 1925, of which thepresent application is a division.

It'is' to be understood'that the particulars herein given arein no way.limitative and that, While still keeping within the scope of theinvention, any desired modifications of detail and desired proportionsmay be made in the apparatus according to the circumstances.

The invention comprises further features Serial No. 757,519.

and combinations of parts to be hereinafter set forth, shown in thedrawings and claimed.

In the drawings: Figure l'is a view in side elevation of an improvedmultiple cylinder motor showing the improved intake andv exhaust valveas applied.

actuators and its connection with the ca-1n shaft actuated oscillator. 7

Referring to the drawings, 1 designates the motor block which, in thepresent instance, is cast in one piece and provided with. eightcylinders a and b, 0 and d, e and f, and g and- T h, althougl'i more orless may be employed.

The cylinders a and?) constitute one set or series, 0 andrl another, 6and f a third set or series, and g and. h a fourth set or series. Thecylinders of each set or series are diver gent, approximating the V-typeof engine, there being a combustion chamber 2 between the adjacent endsof the cylinders of each set.

The combustion chamber 2 is provided where the adjacent ends of thecylinders converge upwardly, as shown in Figure 2. Cylinder heads 6 areprovided for closing the respective combustion chambers 2, each cylinderhead acting to close the adjacent ends of the cylinders of each set. Theexteriors of the cylinders where they are enlarged are rectangular incross section, as disclosed clearly in Figure 3. The cylinder heads 6have integral enlarged extensions or bosses 7 which are tapered and fitbetween the extension walls 8 (on which the flanged portions 9 of thecylinder heads rest) of the enlarged end portions of the cylinders. Thecylinder heads are bolted in position. w

10 and 11 are intake and exhaust mani- "folds, the lateral downwardextensions 12 and 13 of which connect at 14 to the extensions 15 of thecylinder heads. The extencombustion sions of the intake and exhaustmanifolds and the extensions have passages, those designated by thecharacter 16 of the extensions 15 communicating with the valve passages17 and 18 of the cylinder heads. Intake and exhaust valves 19 and 20 areprovided, the stems 21 of which are mounted in guides 22 of the cylinderheads.

The stems 21 diverge upwardly and are under tension of the coil springs23 which surround the reduced extension 24 of the bosses of the cylinderheads which have guides 22. The springs 23 are interposed between theshoulders 25 and the collars 26 which have depressed annular seats 27for the ends of the springs, there being suitable transverse pins 28against which the collars abut. The springs bear against the collars andhold the valves 19 and 20 in engagement With the seats 29.

Each cylinder head between the bosses through which the valve stems 21are guided is countersunk and has a threaded opening 30 for the threadedend 31 of a conventional form of spark plug 32 which, in turn, includessuitable connections, as at 33, with a timing mechanism (not shown) ofthe ignition system (not shown).

The upper terminals of the valve stems are forked for the reception ofrollers 34 which have annular ribs or flanges 35 which engage with thegrooves 36 of the lateral ends of the valve actuators 37 and 38. Theseactuators are mounted in guides 39 between the rectangular portions ofthe cylinders, as shown clearly in Figure 3 of the drawings, and thelower terminals of the actuators 37 and 38 have hemi-spherical members40.

These members 40 where they connect with the lower ends of the actuatorsmerge into conical necks 41 to permit the forks 42 of the rocking leversto engage with the members 40. The levers 43 are fulcrumed at 44 on theextension webs 45 of the cylinders. The extension webs have lateralbosses 46 in which the pins 47 and 48 are guided. The levers 43 arearranged in pairs, one pair for each cylinder, and the adjacent ends ofthe levers of each pair are forked, as in Figure 5, for the receptionand mounting of the rollers 49 which ride upon the upper ends of thepins 47 and 48.

It will be noted that when the pin 47 is moved upwardly through itsguide, the lever is rocked, thereby causing a downward movement of theactuator 37, and due to the lateral terminal of the upper end of theactuator bearing upon the stem of the intake valve 19, the valve 19opens and permits the intake of a charge to the combustion chamber 2.The exhaust valve operates in a similar manner, that is, when the pin 48is moved upwardly, operating the actuator 38 through the medium of thelever which is connected to its lower end.

Crank shafts 63 and 64 are mounted in bearings of the casing of themotor and are operable in the direction of the arrows it and m (Figure2) and the respective cranks of the shafts 63 and 64 are connected byconnecting rods 65 with the pistons 66 and 67 which are operable in thecylinders shown more clearly in Figure 2.

Mounted in bearings of the motor block heads 54 and 55 is a cam shaft 80which is provided with cams 81 and 82, 83 and 84. There are two cams foreach set of cylinders, the cam 81 cooperating with the pin 47 to causean intake of a charge into the combustion chamber while the cam 82cooperates and raises the pin 48 to cause an exhaust "of the utilized orburnt gases; in fact, the cams cooperate with disks 85 and 86 at thelower ends of the pins 47 and 48. On each revolution of the cam shaft,the cams 81 actuate the pins 47.

In the operation, and assuming the pistons 66 of cylinders a and Z) haveabout started on their downward strokes for an intake, with the camshaft in a position whereby the cams 81 are disposed for raising thepins 47 and opening the intake valve 19, the charge enters thecombustion chamher 2. After the pistons have completed their suctionstroke, the combustion chamber having been filled with the charge, thecam 81 has moved from under the pin 47, that is, the pin for operatingthe intake valve 19 of the cylinders a and b, and the pistons return ontheir compression stroke, compressing the charge in the combustionchamber. Immediately following this compression stroke of the pistons ofthe cylinders a and Z), the charge is fired, again moving the pistonsaway from each other in diverging directions and thereby impartingmotion to the crank shafts 63 and 64. Upon the return strokes of thepistons, that is, after completing their firing strokes, they act toscavenge the cylinders and thereby cause an exhaust of the utilized orburnt gases. About the time the pistons proceed toward each other ontheir scavenger strokes, the cam 82 engages with and operates the pin 48which causes a pulling movement of the actuator through the medium ofthe oscillatory lever, thereby depressing the stem of the exhaust valve20 and permitting the escape of the utilized or burnt gases. Followingthe scavenger strokes of the pistons of the cylinders a and I), the cam81 is again in position to actuate pin 47, thereby tilting the lever 43and imparting a pulling action upon the actuator 37, again opening theintake valve 19 which results in the intake of a fresh charge.

As previously stated, the cylinders are designated a and b, 0 and (Z, cand f, and g and it. The cylinders a and b are a set of two, so are theother cylinders. Therefore,

the table of operations of the several cylinders with their cooperativeintake and exhaust valves is as follows:

Cylinders a and b.IntakeCompressionFiringExhaust.

Cylinders 0 and d.-ExhaustIntake-Compression-Firlng.

Cyglinltllers e and f.Firing-ExhaustIntakeCompres- Cylinders 9 andh.CompressionFiringEXhaustIntake.

It will be noted that any suitable gearing between the crank shafts andthe cam shafts may be employed, as ,in the application above mentionedand of which the present invention constitutes a divisional application,and upon everytwo complete revolutions of the crank shaft, the cam shaftrotates one revolution, in which case the cam 81 operates the pin 47 foropening the intake valve 19, and at the completion of every fourth halfrevolution of the crank shaft to permit of an intake into the combustionchamber between the pistons of the cylinders a and b.

The invention having been set forth, what is claimed is:

1. A valve gear for an internal combustion motor comprising a valvecontrolling communication with the motor cylinder, the valve having astem arranged at a slight angle from the vertical and slidably mountedin a guide, an expansion spring yieldingly holding the valve in seatedposition a roller rotatably mounted at the upper end of the valve stem,and a motor operated actuator mounted in vertical guides and provided atits upper 'end with an arcuate lateral extension overhanging andengaging said roller and interlocked with the same to preclude axialturning movement of the actuator and stem.

2. A valve gear for an internal combustion motor comprising a valvecontrolling communication with the motor cylinder, the

valve having a stem arranged at a slight angle from the vertical andslidably mounted in a guide, an expansion spring yieldingly holding thevalve is seated position, a roller rotatably mounted at the upper end ofthe valve stem, and a motor operated actuator mounted in vertical guidesand provided at its upper end with an arcuate lateral extensionoverhanging and engaging said roller, the roller being provided with aperipheral rib and the lateral extension of the actuator having a groovein which said rib engages.

In testimony whereof he aflixes his signature.

MARTIN HENRY.

